XCommand event definitions

The definition of XCommands provides the possible linkage of logical functions between multiple different server items. The defined XCommands can be executed by defining events which react on input value of the involved server items.

File location

<WorkspaceDirectory>\EventFiles\nxaXLogicEvents.dat

Changes within this definition file are taking effect immediately. No server restart is required.

Col#	Name	Description
1	Name	This parameter defines the name of the XCommand instance. The name must be unique.
2	Variable group	This parameter defines the scope where the used internal variables of XCommand are valid. All XCommand instances that are using the same variable group are accessing the same internal variables. This means that all XCommand instances are sharing the same internal variables. If left empty, the instance name (column 1) is used as variable group.
3	Type	This attribute defines when the XCommand shall be triggered. The following types are possible: "ON_START" means that the XCommand is executed once when the NETx BMS Core Server starts. "ON_TIMER" triggers the XCommand cyclically (the interval in seconds can be specified in "Options" column). "ON_INPUT" executes the XCommand whenever one input item changes its value. "ON_TIMER_AND_INPUT" is used for XCommands that shall be triggered cyclically and whenever one input item changes. "ON_STOP" means that the XCommand is executed once when the NETx BMS Core Server stops. "ON_VALUE_CHANGE" means that the XCommand is only executed when one of the input items are changing. "ON_VALUE_RISING" means that the XCommand is only executed when one of the input items are changing and the new value is greater than the last one. When working with boolean values, TRUE is higher than FALSE. "ON_VALUE_FALLING" means that the XCommand is only executed when one of the input items are changing and the new value is lower than the last one. When working with boolean values, TRUE is higher than FALSE. "ON_ABOVE_LIMIT" means that the XCommand is only executed when one of the input items is above a limit. "ON_BELOW_LIMIT" means that the XCommand is only executed when one of the input items is below a limit.
4	Options	Depending on the selected type, different options can be specified here: ON_START: no options. ON_STOP: no options. ON_INPUT Trigger on start (default is false). If true, the logic is also executed on server start-up. Synchronous call (default is false). If true, the logic is executed synchronous i.e. no other server tasks or events are triggered until the execution is finished. ON_VALUE_CHANGE Tolerance: value range which must be exceeded between two values in order to trigger the event. Trigger on start (default is false). If true, the logic is also executed on server start-up. ON_VALUE_RISING Tolerance: value range which must be exceeded between two values in order to trigger the event. Once: if enabled, the XCommand is executed a single time after it begins to rise. ON_VALUE_FALLING Tolerance: value range which must be exceeded between two values in order to trigger the event. Once: if enabled, the XCommand is executed a single time after it begins to fall. ON_ABOVE_LIMIT Limit: value that must be exceeded. Once: if enabled, the command is only executed a single time after the limit is exceeded. Hysteresis ON_BELOW_LIMIT Limit: value that must be exceeded. Once: if enabled, the command is only executed a single time after the limit is exceeded. Hysteresis ON_TIMER Timer type (cyclic or time). If cyclic is selected, the logic will be triggered in a cyclic interval. If time is chosen, the logic will be triggered every day at a given point in time. Interval: The interval in seconds. Time: The time at which the XCommand shall be executed every day. ON_TIMER_AND_INPUT Timer type (cyclic or time). If cyclic is selected, the logic will be triggered in a cyclic interval. If time is chosen, the logic will be triggered every day at a given point in time. Interval: The interval in seconds. Time: The time at which the XCommand shall be executed every day.
5	XCommand	The parameter defines the XCommand that shall be executed. To assist in selecting the inputs, outputs, and parameters, a dialog is available which can be open via the "..." button.
6	Inputs	This parameter defines the inputs of the XCommand. If the XCommand is selected via the dialog, this parameter is filled automatically.
7	Outputs	This parameter defines the outputs of the XCommand. If the XCommand is selected via the dialog, this parameter is filled automatically.
8	Parameters	This parameter defines the parameters of the XCommand. If the XCommand is selected via the dialog, this parameter is filled automatically.